FP071SAFETY AND EFFICACY OF SODIUM ZIRCONIUM CYCLOSILICATE FOR LONG-TERM TREATMENT OF HYPERKALAEMIA IN PATIENTS WITH CHRONIC KIDNEY DISEASE: RESULTS FROM AN OPEN-LABEL, PHASE 3 STUDY. (18th May 2018) - Roger, Simon; Lavin, Philip; Lerma, Edgar; McCullough, Peter; Butler, Javed; Spinowitz, Bruce; von Haehling, Stephan; Kosiborod, Mikhail; Adler, Scott; Fishbane, Steven; Packham, David